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How does free know how much to free?
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From the comp.lang.c FAQ list: How does free know how many bytes to free?
The malloc/free implementation remembers the size of each block as it is allocated, so it is not necessary to remind it of the size when freeing. (Typically, the si...
Can comments be used in JSON?
..."SortAs": "SGML",
"GlossTerm": "Standard Generalized Markup Language",
"Acronym": "SGML",
"Abbrev": "ISO 8879:1986",
"GlossDef": {
"para": "A meta-markup language, used to create markup languages such as DocBook.",
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How to delete an SMS from the inbox in Android programmatically?
... trying the delete on sms/inbox/ or sms/all/, you will probably get:
java.lang.IllegalArgumentException: Unknown URL
at com.android.providers.telephony.SmsProvider.delete(SmsProvider.java:510)
at android.content.ContentProvider$Transport.delete(ContentProvider.java:149)
at android.conte...
What are all the uses of an underscore in Scala?
I've taken a look at the list of surveys taken on scala-lang.org and noticed a curious question: " Can you name all the uses of “_”? ". Can you? If yes, please do so here. Explanatory examples are appreciated.
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Bootstrap 3 and Youtube in Modal
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Try this For Bootstrap 4
<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1...
Why are you not able to declare a class as static in Java?
...). - As others have noted (Iain Elder in a comment to another answer), the language designers could have allowed the static keyword on a top-level class to denote and enforce that it may only contain static members, and not be instantiated; that could, however, have confused people as static has a d...
Splitting String with delimiter
... way in groovy. you have to use tokenize...
See the docs:
http://groovy-lang.org/gdk.html#split()
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How to read environment variables in Scala
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Same way:
scala> System.getenv("HOME")
res0: java.lang.String = /Users/dhg
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Why is an array not assignable to Iterable?
... Arrays do implement methods: they implement all the methods of java.lang.Object.
– mhsmith
Aug 2 '17 at 12:34
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When should null values of Boolean be used?
...grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/lang/Boolean.java
A null Boolean reference should only be used to trigger similar logic to which you have any other null reference. Using it for three state logic is clumsy.
EDIT: notice, that Boolean a = true; is a mislead...